Screen for use with windows of the sliding-sash type



May 14, 1929. J. GRANT 1,712,664

SCREEN FOR USE WITH WINDOWS OF THE SLIDING SASH TYPE Filed 001;. l, 19272 Sheets-Sheet 1 May 14, 1929; J. GRANT 1,712,664

SCREEN F05 USE WITH WINDOWS OF THE SLIDING SASH TYPE Filed Ootfl, 1927 2Sheets-Sheet 2 Patented May 14, 1929.

UNITED STATES 1,712,664 PATENT OFFICE.

JAMES GRANT, or oounocx, sco'rriniin.

SCREEN FOR USE WITH. XVINDOTVS OF THE SLIDING-EASE TYIEE.

Application filed October 1, 1927, Serial No. 223,397, and in GreatBritain June 20, 192?.

The invention relates to an improved screen for use with windows of thesliding type.

According to the present invention, I provide a wire-mesh or like screenadapted to be associated with a widow of the type stated so that, whenthe window is openechthe screen moves automatically into position overthe opening, and, when the window closed, the screen moves automaticallyout of position so as not to hinder the access of. light or obscuretheview throughthe window.

Preferably, the wire-mesh or like screen isv secured at one end to thewindow sash and is adapted to move between guide members carried by thewindow frame or sill. The screen may be held in spaced relationship, ifnecessary, with respect to the window sash, and, if desired, beadjustable towards or away from the sash.

Referring to the drawings Fig. 1 is an elevation, illustrating oneembodiment of screen as applied to a window.

Fig. 2 is a section on line 11-11 in Fig. 1. Fig. 3 is an elevation of afurther embodiment.

Fig. 4. is a section on line IV-IV in Fig. 3, but shows the screenpartly collapsed.

Fig. 5 is a plan view, partly in section, of the screen detached;

Fig. 6 is a fragmentary view illustrating a slight modification.

In one embodiment of my invention as shown in Figs. 1 and 2, as appliedto the lower sash of a window, the screen comprises a rectangular frame1 over which is stretched a. piece of wire mesh 2. Adjacent each side,the screen is fitted with an upright metal guiding strip 3, the twostrips being kept in spaced relationship to the screen by a distancepiece 1 at top and bottom.

The bottom of each strip 3 with its corresponding distance piece 4 issecured to the wire-mesh screen by a bolt 5 fitted with a wing-nut 6. Atthe top, each strip and distance piece are secured to the wire-meshscreen by a bolt 7 which has at one end a shoulder 8 bearing againststrip 3 and a wing nut 9 and at the other end a screwed part 10 whichpasses through a hole 11 in the bottom bar of the window sash 12. Thisbolt serves to attach the top edge ofthe screen to the sash frame, thetwo nuts 13-14= being adapted to grip therebetween the said bottom barof the window sash.

Guides for the screen are secured on the window frame 17 and eachcomprises a bolt 18 having an integral apcrtured attachment portion 19adapted to be secured at oneend to the window frame and having abifurcated outer end 20 provided with a pair of spaced pinsfll extendingtransversely thereof, a roller 22 being rotatably mounted on each pin.The bolts 7 and 18 may be made extensible and cont-ractible so as toallow a standard screen to be fitted to windows hav ing sills ofdifferent widths.

.l Vhen the screen is in use, the upright strips at the sides of thescreen are adapted to pass through the bifurcated end, between the pairsof rollerscarried from the window frame, the outermost roller in eachcase projecting between the strip and the wire-mesh.

It will be clear from the foregoing that, when the Window sash isin itslowerposition, and the window is closed, the wiremesh screen is locatedat the side of the wall of the building, below the window sill and thusdoes not interfere with the view out of the window and does nothinder-the access of light. On the other hand, whenever the window sashis raised, the wire-mesh screen is drawn upwards therewith to cover theopening between the bottom bars of the sash and window frame. it

lnthe further embodiment shown in Figs. 3, 4L and 5 the screen member ismade in three sections marked 30, 31 and 32, each section as beforecomprising a rectangular frame on to which is fixed a piece of wire-mesh3 One section 31 is provided on both sides with spaced channel members35. Two such chan nel members are provided on each side in theparticular construction illustrated. The other sections 30 and 32 areprovided on one side only with a bar-like projection 36, which extendsacross the, screen from top to bottom thereof, and is fixed in spacedrelationship to the screen by pins 37, the projection on section 30extending slightly beyond the lower edgethereof and the projection onthe section 32 extending slightly beyond the upper edge thereof. Thesebar-like projections slidably engage in the channel members and are soarranged that the sections can be moved into a position in which theyextend one beyond the other as shown in Fig. 3, or into a position inwhich they lie side by side. The projections and channels are so constructed as to prevent their disengagement.

The section 30 is provided with two spaced attachment devices by whichit can be detachably secured upon the window sash, this devicecomprising two plates 41, the plate 40 "having a shoulder 42 and ascrewed shank .43, which latter can be passed through a hole in aprojecting boss part 44 on the frame and receives a wing nut 45, servingto clamp it to said frame. The plates 40, 41 are provided with slotsmarked 46 and 47 respectively through which pass studs 48 having wingnuts 49. 7 By this means the devices can be extended and contracted'soas to make a standard screen applicable to windows having various shapesand sizes of'sills. The plate 41 hasa; screwed-shank 50 with a plain nut51 and. a wing nut 52 by which it can be detachably clamped upon thesliding sash of the window- The screen sections are supported by aguiding member comprising two plates 55, 56, one of which has a slot 57and the other carries two studs 58 whichproject through the slot 57 andreceive'nuts 59 so that the guiding member is extensible andcontractiblewithin limits, for a similar reason to that for which theattachment device is extensible and contractible. The plate 56 isprovided with an apertured attachment portion 60 adapted to be securedto the window frame by screws 61, and the plate is provided with anapertured attachment portion adapted to be secured to the window frameby screws 61, and the plate 55 is provided with a'bifurcated end 63carrying two pins 64 on which are rotatably mounted rollers 65.

Between these rollers 65 is disposed a guide rail 66 fixed in spacedrelationship upon section 32. This guiding member therefore notonlyserves to support the sections, but also allows the section 32 toslide in relation thereto. It will be readily understood that if thewindow sash is in its lower position the sections will lie side by side,but when the sash is raised the sections will be raised successive ly tocover the opening; If the sash is moved into the position shown in 4section 30 alone is raised, if now the sash is again raised section 31will be lifted and if the sash is moved to open fully the window allthree sections will be lifted, and will extend one above 7 the other toclose the window opening.

Instead of the guiding member being in the form of strips of metal, thismay be constituted, as shown in Fig. 6, by a piece of wire 70 attachedto the screen frame by bending it over the distance pieces 71 andforming eyes in the wire, one at each end thereof, to engage the bolt74, in which case instead of the rollers, the guiding member 72 isprovided with an eye 73 through which the wire passes.

The invention is applicable to ordinary window sashes without anyalteration in the structure or arrangement thereof, and, when notrequired, can be readily detached and stowed away. The screen isparticularly adapted for use on the outside of a window, but can bedisposed, if convenient, on the inside thereof.

I claim 1. A unitary screen structure for application to existingsliding sash windows, comprising, a screen member, extensible andcontractible attachment means for detachably securing one end of saidscreen member to the window, guide rails extending vertically acrosssaid screen member, distance pieces spacing said guide rails from thescreen member, extensible and contractible guide members adapted to beattached to a window frame and rollers rotatably mounted on said guidemembers adapted to contact with said guide rails, to guide and retainthe screen member in its proper position.

2. A unitary screen structure for application to existing sliding sashwindows, comprising, a plurality of screen sections, means slidablyinterconnecting said sections so that they can extend one beyond theother and contract to lie side by side, extensible and contractiblemeans for supporting the screen sections, and extensible andcontractible means for attaching one screen section to a moving part ofa window. whereby the screen moves extensively to close the opening whenthe window is opened and contractibly to reduce the size of the screenwhen the window is closed.

In testimony whereof I afiix my signature.

